Talk:K12 Comparative Embryology: Difference between revisions
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==References== | ==References== | ||
These references are not suitable for K12 level of this topic. I will identify a good simplified review, when I find one. | |||
===Gavin Rylands de Beer: how embryology foreshadowed the dilemmas of the genome=== | ===Gavin Rylands de Beer: how embryology foreshadowed the dilemmas of the genome=== | ||
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Good discussion of historic background to comparative embryology in relation to evolution. | Good discussion of historic background to comparative embryology in relation to evolution. | ||
===Mark Q. Martindale: shedding new light on developmental diversity=== | |||
Int J Dev Biol. 2011;55(3):237-42. | |||
Hejnol A. | |||
Source | |||
Sars International Centre for Marine Molecular Biology, Bergen, Norway. andreas.hejnol@sars.uib.no | |||
Abstract | |||
The Saint-Petersburg Society of Naturalists awarded the 2009 "Alexander Kowalevsky Medal" to Mark Q. Martindale, Professor of Organismal Biology at the University of Hawaii and Director of the Kewalo Marine Laboratory, Honolulu. This international award inaugurated first in 1910 was re-established only in 2001. In memory of Alexander Onufrievich Kowalevsky, it is awarded to outstanding zoologists and embryologists who have made great contributions to the field of embryology and developmental biology from an evolutionary perspective. Mark Q. Martindale has worked on a wide range of animals, mostly marine species, in contrast to many evo-devo researchers who often use a single "well-established" model organism. His work demonstrates how the insights gained by studying less "popular" animal taxa not only complement, but also significantly enrich our knowledge of the evolution of metazoan body plans and of the events that have led to the current animal diversity. | |||
PMID 21710431 | |||
http://www.ijdb.ehu.es/web/paper.php?doi=10.1387/ijdb.103151ah | |||
===Ernest Everett Just, Johannes Holtfreter, and the origin of certain concepts in embryo morphogenesis=== | |||
Mol Reprod Dev. 2009 Oct;76(10):912-21. | |||
Byrnes WM. | |||
Source | |||
Department of Biochemistry and Molecular Biology, Howard University College of Medicine, Washington, District of Columbia 20059, USA. wbyrnes@howard.edu | |||
Abstract | |||
Ernest E. Just (1883-1941) is best known for his discovery of the "wave of negativity" that sweeps of the sea urchin egg during fertilization, and his elucidation of what are known as the fast and slow blocks to polyspermy. Just's contemporary Johannes Holtfreter (1901-1992) is known for his pioneering work in amphibian morphogenesis, which helped to lay the foundation for modern vertebrate developmental biology. This paper, after briefly describing the life and scientific contributions of Just, argues that his work and ideas strongly influenced two of the concepts for which Holtfreter is best known: tissue affinity and autoneuralization (or autoinduction). Specifically, this paper argues that, first, Just's experiments demonstrating developmental stage-specific changes in the adhesiveness of the blastomeres of cleavage embryos helped lay the foundation for Holtfreter's concept of tissue affinity and, second, Just's notion of the intrinsic irritability of the egg cell, which is evident in experimental parthenogenesis, strongly informed Holtfreter's concept of the nonspecific induction of neural tissue formation in amphibian gastrula ectoderm explants, a phenomenon known as autoinduction. Acknowledgment of these contributions by Just in no way diminishes the importance of Holtfreter's groundbreaking work. It does, however, extend the impact of Just's work into the area of embryo morphogenesis. It connects Just to Holtfreter and positions his work as an antecedent to embryo research that continues to this day. | |||
(c) 2009 Wiley-Liss, Inc. | |||
PMID: 19610071 | |||
Revision as of 11:45, 27 June 2012
About Discussion Page
This page is not intended to be used by students, though if you do find yourself here there are now secret answers to any worksheet questions. I use this page as a draft location to put links, information and references that may be useful on the actual page.
Other Species Stages
Chicken: Chicken stages | Hamburger Hamilton Stages | Witschi Stages
Exercise Documents
- Exercise 1 - Embryo Size File:K12_Comparative_Embryology_Exercise_1.doc | File:K12_Comparative_Embryology_Exercise_1.pdf
- Exercise 2 - Embryo Stages File:K12_Comparative_Embryology_Exercise_2.doc | File:K12_Comparative_Embryology_Exercise_2.pdf
Online Resources
- Search PubMed Comparative Embryology
- Developmental Biology. 6th edition. Comparative Embryology
- PBS PDF
Access Log
- 25 June 2012, at 01:59 page has been accessed 105 times.
References
These references are not suitable for K12 level of this topic. I will identify a good simplified review, when I find one.
Gavin Rylands de Beer: how embryology foreshadowed the dilemmas of the genome
Nat Rev Genet. 2006 Nov;7(11):892-8.
Horder TJ.
Source Department of Physiology, Anatomy and Genetics, University of Oxford OX1 3QX, UK. tim.horder@anat.ox.ac.uk
Abstract
Gavin de Beer is remembered, at best, as a shadowy figure among those who gradually built up our current view of evolution and the role of genetics. This view derives from the Modern Synthesis - the recognition that emerged in the 1930s that genetics can adequately explain Darwinian evolution and speciation through natural selection. I argue that de Beer's theories of embryology had a crucial role in the Modern Synthesis, and that his work indirectly continues to influence how we think about the genome, evolution and developmental biology.
PMID 17047688 Nat Rev Genet.
Good discussion of historic background to comparative embryology in relation to evolution.
Mark Q. Martindale: shedding new light on developmental diversity
Int J Dev Biol. 2011;55(3):237-42. Hejnol A. Source Sars International Centre for Marine Molecular Biology, Bergen, Norway. andreas.hejnol@sars.uib.no
Abstract
The Saint-Petersburg Society of Naturalists awarded the 2009 "Alexander Kowalevsky Medal" to Mark Q. Martindale, Professor of Organismal Biology at the University of Hawaii and Director of the Kewalo Marine Laboratory, Honolulu. This international award inaugurated first in 1910 was re-established only in 2001. In memory of Alexander Onufrievich Kowalevsky, it is awarded to outstanding zoologists and embryologists who have made great contributions to the field of embryology and developmental biology from an evolutionary perspective. Mark Q. Martindale has worked on a wide range of animals, mostly marine species, in contrast to many evo-devo researchers who often use a single "well-established" model organism. His work demonstrates how the insights gained by studying less "popular" animal taxa not only complement, but also significantly enrich our knowledge of the evolution of metazoan body plans and of the events that have led to the current animal diversity.
PMID 21710431
http://www.ijdb.ehu.es/web/paper.php?doi=10.1387/ijdb.103151ah
Ernest Everett Just, Johannes Holtfreter, and the origin of certain concepts in embryo morphogenesis
Mol Reprod Dev. 2009 Oct;76(10):912-21.
Byrnes WM. Source
Department of Biochemistry and Molecular Biology, Howard University College of Medicine, Washington, District of Columbia 20059, USA. wbyrnes@howard.edu Abstract Ernest E. Just (1883-1941) is best known for his discovery of the "wave of negativity" that sweeps of the sea urchin egg during fertilization, and his elucidation of what are known as the fast and slow blocks to polyspermy. Just's contemporary Johannes Holtfreter (1901-1992) is known for his pioneering work in amphibian morphogenesis, which helped to lay the foundation for modern vertebrate developmental biology. This paper, after briefly describing the life and scientific contributions of Just, argues that his work and ideas strongly influenced two of the concepts for which Holtfreter is best known: tissue affinity and autoneuralization (or autoinduction). Specifically, this paper argues that, first, Just's experiments demonstrating developmental stage-specific changes in the adhesiveness of the blastomeres of cleavage embryos helped lay the foundation for Holtfreter's concept of tissue affinity and, second, Just's notion of the intrinsic irritability of the egg cell, which is evident in experimental parthenogenesis, strongly informed Holtfreter's concept of the nonspecific induction of neural tissue formation in amphibian gastrula ectoderm explants, a phenomenon known as autoinduction. Acknowledgment of these contributions by Just in no way diminishes the importance of Holtfreter's groundbreaking work. It does, however, extend the impact of Just's work into the area of embryo morphogenesis. It connects Just to Holtfreter and positions his work as an antecedent to embryo research that continues to this day. (c) 2009 Wiley-Liss, Inc. PMID: 19610071
